上游原料
3,4,5Ttrimethoxybenzoyl chlorideTabersonine; Methyl 3a-ethyl-3a,4,6,11,12,13a-hexahydro-1H-indolizino[8,1-cd]carbazole-5-carboxylatemethyl (13aR,13bS)-13a-ethyl-12-hydroxy-5,6,12,13,13a,13b-hexahydro-3H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylatemethyl (13aR,13bS)-13a-ethyl-5,6,12,13,13a,13b-hexahydro-3H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate[(13aR,13bS)-13a-ethyl-5,6,12,13,13a,13b-hexahydro-3H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridin-12-yl]methanol